Milling machine



May 26, 1925. 1,539,471

Y* F. R. DEURING MILLING MACHINE Filed June 29, 1920 2 vSheets-Sheet. l

[l Il H F. R. DEURING MILLING MACHINE May 26, 1925. 1,539,471

Filed June 29, 1920 2 Sheets-Sheet 2 Patented May 26, 1925.

UNITED STATES PATENT OFFICE.

MILLING MACHINE.

Application filed June 29, 1920. Serial No, 392,904.

To all whom t may concern:

Be it known that I, FRITZ RICHARD DEUR ING, citizen of the GermanRepublic, residing at M. Gladbach, Hohenzollernstrasse 134, Germany,have invented certain new and useful Improvements in Milling Machines(for which I have tiled an application in Germany Dec. 5, 1917, No.307,789, dated Oct. 1, 1920), of which the following is a specification.

It has hitherto been usual, in milling machines to have th-e work-holderarranged to move under the tool, or the tool over the work-holder. Thework-holder has been in the form of a carriage, or of two carriages sideby side, or ot a rotatable ring. It there is only one work holder themilling machines muststop, or be put out of action, while the work isput on or taken ofi. This drawback is obviated by the airangement of twowork holders side by side, because one of them can be unloaded andreloaded while work is b-eing done on the other. The ring-shapedwork-holder also obviates the said disadvantage, as while it is beingmoved step by step one part of it can always be unloaded and reloaded.The ring-shaped workholder, however, has the disadvantage that work ofan angular or polygonal basic shape cannot be directly worked on at theside, because the cutting at the side is not recti linear but curved.Moreover, all milling machines hitherto known have one importantdisadvantage, namely that the shavings lie upon the work and cover thesetting devices, so that after each operation the work and settingdevices must be cleaned, which frequently takes a good deal of time, andif it is notl done thoroughly leads to inaccuracy in the setting offresh work.

The present invention obviates these disadvantages. It consists inmounting the work-holder over the cutter, giving it a prismat-ic orpolygonal shape, and making it rotatable on a horizontal spindle, sothat while the work is treated on one side the other side can beunloaded and reloaded.

The invention is illustrated in the anneXed drawings, in which Fig. 1 isa side view of a milling machine embodying the present invention andFig. 2 is an end view of same.

In the drawing a designates the work mounting` and drive of the carriagem supporting the cutters and actuating gear may be of any suitable kind,and for simplicity no further particulars of this part oit thc apparatuswill be given, as it has nothing to do with the principle of theinvention. In all cases the cutters are reciproca-ted under thework-holder in the direction oit the arrows ay and deal with the work,either at the face directed towards the cutters or alsol at the sides.

In all cases the shavings taken ofi' the work drop down, so that thework and the setting devices remain free of shavings, and after turningthe revolver head it can at once be reloaded, without inconvenience ordanger to the operator, whileI the downwardly directed work is beingtreated.

Having now particularly described and ascertained the nature of my saidinvention,

what I claim to be new, and desir-e to secure by Letters Patent, is:

1. In a milling machine, a work-holding revolver head, means forattaching a plurality of separate work pieces to said revolver head, amilling tool disposed below said revolver head, means tor reciprocatingsaid tool in required relation to said revolver head, and means forprogressively bringing said work pieces into the path of said tool'.

. 2. In a milling machine, a prismatic work holding revol-ver head,axially disposed `iournals for supporting said revolve-r head inlongitudinal position, a tool adapted to reciprocate beneath saidrevolver head and in an axial direction relative thereto, means forliking work pieces on the faces of said revolver head, and means forrotating said revolver head for bringing the work pieces successivelyinto the path of said tool.

In testimony whereof the foregoing specification is si ed.

FR TZ RICHARD DEURINGn

